+47 1. Joseph borrows $10000 from his sister Katie at an annual interest rate of 10%. If the interest compounded twice a year, how much does he owe after 12 months? Answer in dollars.
2. How many multiples of 9 are between 100,000 and 100,185
+37146 Each compounding PERIOD is 6 months 2 per year
interest per period in decimal form is .10/2 = .05
12 months is two periods
10 000 ( 1 + .05)2 = amount owed after 1 year = __________ dollars
